代码随想录二刷day51

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前言

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一、力扣309. 买卖股票的最佳时机含冷冻期

class Solution {public int maxProfit(int[] prices) {int n = prices.length;int[][] dp = new int[n][3];dp[0][0] = -prices[0];for(int i = 1; i < n; i ++){dp[i][0] = Math.max(dp[i-1][0], dp[i-1][2] - prices[i]);dp[i][1] = Math.max(dp[i-1][1], dp[i-1][0] + prices[i]);dp[i][2] = dp[i-1][1];}return dp[n-1][1];}
}

二、力扣714. 买卖股票的最佳时机含手续费

class Solution {public int maxProfit(int[] prices, int fee) {int n = prices.length;int[][] dp = new int[n][2];dp[0][0] = -prices[0] - fee;for(int i = 1; i < n ; i ++){dp[i][0] = Math.max(dp[i-1][0], dp[i-1][1] - prices[i] - fee);dp[i][1] = Math.max(dp[i-1][1], dp[i-1][0] + prices[i]);}return dp[n-1][1];    }
}